Your "stands to reason", as logic, is flawed. Just because there are more "leftists" in the Tel Aviv area than there are "right-wingers" does not necessarily mean that the majority of murders are committed the the majority which votes for left wing parties. It is also a gross error to term Kadima a left wing party. Errors in logic, a complete ignorance of the nature of cause and effect signals the thought processes of the right-wing in Israel.
Israeli ambassador to U.K.: Elements of left 'in denial' about 'disease' of anti-Semitism (Haaretz)
from the article: Settlements are fertile ground for Jewish terror